#include <linux/slab.h>
#include <linux/if_ether.h>
#include "htt.h"
#include "core.h"
#include "debug.h"
static int ath10k_htt_htc_attach(struct ath10k_htt *htt)
{
struct ath10k_htc_svc_conn_req conn_req;
struct ath10k_htc_svc_conn_resp conn_resp;
int status;
memset(&conn_req, 0, sizeof(conn_req));
memset(&conn_resp, 0, sizeof(conn_resp));
conn_req.ep_ops.ep_tx_complete = ath10k_htt_htc_tx_complete;
conn_req.ep_ops.ep_rx_complete = ath10k_htt_t2h_msg_handler;
/* connect to control service */
conn_req.service_id = ATH10K_HTC_SVC_ID_HTT_DATA_MSG;
status = ath10k_htc_connect_service(&htt->ar->htc, &conn_req,
&conn_resp);
if (status)
return status;
htt->eid = conn_resp.eid;
return 0;
}
int ath10k_htt_attach(struct ath10k *ar)
{
struct ath10k_htt *htt = &ar->htt;
int ret;
htt->ar = ar;
htt->max_throughput_mbps = 800;
/*
* Connect to HTC service.
* This has to be done before calling ath10k_htt_rx_attach,
* since ath10k_htt_rx_attach involves sending a rx ring configure
* message to the target.
*/
ret = ath10k_htt_htc_attach(htt);
if (ret) {
ath10k_err("could not attach htt htc (%d)\n", ret);
goto err_htc_attach;
}
ret = ath10k_htt_tx_attach(htt);
if (ret) {
ath10k_err("could not attach htt tx (%d)\n", ret);
goto err_htc_attach;
}
ret = ath10k_htt_rx_attach(htt);
if (ret) {
ath10k_err("could not attach htt rx (%d)\n", ret);
goto err_rx_attach;
}
/*
* Prefetch enough data to satisfy target
* classification engine.
* This is for LL chips. HL chips will probably
* transfer all frame in the tx fragment.
*/
htt->prefetch_len =
36 + /* 802.11 + qos + ht */
4 + /* 802.1q */
8 + /* llc snap */
2; /* ip4 dscp or ip6 priority */
return 0;
err_rx_attach:
ath10k_htt_tx_detach(htt);
err_htc_attach:
return ret;
}
#define HTT_TARGET_VERSION_TIMEOUT_HZ (3*HZ)
static int ath10k_htt_verify_version(struct ath10k_htt *htt)
{
ath10k_info("htt target version %d.%d\n",
htt->target_version_major, htt->target_version_minor);
if (htt->target_version_major != 2 &&
htt->target_version_major != 3) {
ath10k_err("unsupported htt major version %d. supported versions are 2 and 3\n",
htt->target_version_major);
return -ENOTSUPP;
}
return 0;
}
int ath10k_htt_attach_target(struct ath10k_htt *htt)
{
int status;
init_completion(&htt->target_version_received);
status = ath10k_htt_h2t_ver_req_msg(htt);
if (status)
return status;
status = wait_for_completion_timeout(&htt->target_version_received,
HTT_TARGET_VERSION_TIMEOUT_HZ);
if (status <= 0) {
ath10k_warn("htt version request timed out\n");
return -ETIMEDOUT;
}
status = ath10k_htt_verify_version(htt);
if (status)
return status;
return ath10k_htt_send_rx_ring_cfg_ll(htt);
}
void ath10k_htt_detach(struct ath10k_htt *htt)
{
ath10k_htt_rx_detach(htt);
ath10k_htt_tx_detach(htt);
}